Multispectral imaging is an optical acquisition method that records scene radiance or reflectance in multiple discrete spectral bands, typically spanning the visible, near-infrared, and sometimes shortwave infrared regions. Using bandpass filters, tunable filters, or sensor arrays with spectrally selective elements, it generates co-registered images where each band captures wavelength-dependent material properties. Quantitative analysis of these bands enables spectral feature extraction, classification, and segmentation based on differences in absorption, scattering, or fluorescence. In research, multispectral imaging is applied to non-destructive assessment, tissue characterization, remote sensing, and cultural heritage analysis, often serving as a lower-complexity, higher-throughput alternative to full hyperspectral imaging.
After more than 10 years in orbit, the first Copernicus Sentinel-2 satellite, Sentinel-2A, is still finding new ways to contribute to Earth observation. With its younger siblings, Sentinel-2B and Sentinel-2C, now leading ...
Planetary Sciences
Jan 15, 2026
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NASA's SPHEREx Observatory has mapped the entire sky in 102 infrared colors, as seen here in this image released on Dec. 18, 2025. This image features a selection of colors emitted primarily by stars (blue, green, and white), ...
Astronomy
Jan 6, 2026
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Monitoring forest health typically relies on remote sensing tools such as light detection and ranging (LiDAR), radar, and multispectral photography. While radar and LiDAR penetrate canopies to reveal structure, they struggle ...
Environment
Jan 5, 2026
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Launched in March, NASA's SPHEREx space telescope has completed its first infrared map of the entire sky in 102 colors.
Astronomy
Dec 18, 2025
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This week, at the IEEE International Electron Devices Meeting (IEDM 2025), imec, a research and innovation hub in advanced semiconductor technologies, successfully demonstrated the integration of colloidal quantum dot photodiodes ...
Optics & Photonics
Dec 11, 2025
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57
A recent study led by scientists at NASA's Jet Propulsion Laboratory in Southern California and the nonprofit Aerospace Corporation shows how high-resolution maps of ground-level ammonia plumes can be generated with airborne ...
Earth Sciences
Nov 20, 2025
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Agricultural producers and manufacturers often need information about crop attributes, from nutrient content to chemical composition, to make management decisions. In recent years, multispectral imaging has emerged as a useful ...
Biotechnology
Nov 19, 2025
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A new imaging system could help us see deeper into the universe than ever before. The same powerful technology could also help us analyze the chemical makeup of everyday materials such as food and medicines much faster and ...
A research team in South Korea has developed a next-generation sensor material capable of integrating the detection of multiple light wavelengths.
Nanophysics
Sep 24, 2025
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89
When German physicist Wilhelm Röntgen discovered X-rays in the late 1800s while experimenting with cathode ray tubes, it was a breakthrough that transformed science and medicine. So much so that the basic concept remains ...
Optics & Photonics
Sep 18, 2025
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